Patent US3031087A successfully refreshed from Google Patents.
US3031087A
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Structures incorporating section strut material
Assignee: RATBY ENGINEERING Co Ltd
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Filing: 1959-06-11
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Granted: 1962-04-24
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Expires: 1979-06-11
Abstract
No abstract record available.
Inventors
- 👤 Leonard G Herrod
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:44
CPC Classifications
F; F16; F16B; F16B12/00; F16B12/10; F16B12/28; F16B12/32; A; A47; A47B; A47B47/00; A47B47/02; A47B47/021; A47B47/024; A47B57/00; A47B57/30; A47B57/32; A47B57/34; A62; A62C; A62C3/00; A62C3/06; B; B01; B01F; B01F25/00; B01F25/30; B01F25/31; B01F25/311; B01F25/3111; B01F25/31112; B62; B62D; B62D33/00; B62D33/04; B62D33/044; E; E04; E04B; E04B1/00; E04B1/38; E04B1/58; F16B37/00; F16B37/04; F16B37/045; E04B1/388; E04B2001/389
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |